大约有 31,400 项符合查询结果(耗时:0.0278秒) [XML]

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DDD - the rule that Entities can't access Repositories directly

... is separation of concerns and good layering. This doesn't make sense on small projects, but if you're on a large team you want to say, "You access a product through the Product Repository. Product is an aggregate root for a collection of entities, including the ProductCatalog object. If you want to...
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How to import an excel file in to a MySQL database

...alues (e.g. ',', while using 'as defined in cell properties' separator for all other values. Best to stay away from CSV. – afk5min Apr 12 '14 at 15:14 ...
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Is there a bash command which counts files?

...even when the output is not the terminal. And these flags are supported by all the platforms and shells I've tested on. Updating the answer, thanks to you and camh for the input! – Daniel Jan 25 '17 at 5:38 ...
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Why are only a few video games written in Java? [closed]

...d port it, that takes a lot of effort (and of course, the license needs to allow it). Also, a lot of legacy code already exists in C++. If code from previous projects can be reused (say, if you're writing a sequel), that counts even more in favor of sticking with the same language, instead of rewri...
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What does Visual Studio mean by normalize inconsistent line endings?

Visual Studio occasionally tells me: 11 Answers 11 ...
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How does the bitwise complement operator (~ tilde) work?

...ng the binary representation of a number, taking its complement (inverting all the bits) and adding one. Two starts as 0000 0010, and by inverting the bits we get 1111 1101. Adding one gets us the result above. The first bit is the sign bit, implying a negative. So let's take a look at how we get ~2...
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What is the difference between UTF-8 and Unicode?

...'ve got lots of languages with lots of characters that computers should ideally display. Unicode assigns each character a unique number, or code point. Computers deal with such numbers as bytes... skipping a bit of history here and ignoring memory addressing issues, 8-bit computers would treat an 8...
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Best way to work with dates in Android SQLite [closed]

...at, the default if you use datetime('now') (yyyy-MM-dd HH:mm:ss) will then allow sorting by the date column. Retrieving dates as strings from SQLite you can then format/convert them as required into local regionalised formats using the Calendar or the android.text.format.DateUtils.formatDateTime me...
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Rich vs Anemic Domain Model [closed]

...he methods can react to state changes of other data -> This is what we call behavior. In an anemic model the data models can not guarantee that they are in a legal state while in a rich domain model they can. A rich domain model applies OO principles like encapsulation, information hiding and br...
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LINQ Select Distinct with Anonymous Types

...on of objects. The exact type isn't important. From it I want to extract all the unique pairs of a pair of particular properties, thusly: ...